McIntyre Lacrimal Probe CannulaDDP Elite USA McIntyre Lacrimal Probe Cannula is an extremely useful tool in treating tear duct obstructions. The probe may be used to investigate blockage of lacrimal gland damage or more frequently, obstruction of the nasolacrimal duct. The slender profile of the cannula allows access to the small entrances of the duct. Both straight and curved models are available depending on surgical preference. Please note that website images are often